Retraction

The authors of this article [1] would like to retract it. It contains duplicated Tax and actin Western blotting images. These misrepresentations do not change the scientific conclusion of the paper. The first author, Mariko Tomita and last author, Naoki Mori, take full responsibility for the duplication and misrepresentation of the figures in this paper, state that none of the co-authors were involved in or aware of these events, and apologizes to the readers, reviewers and editors of Retrovirology for publishing these duplicated images.